Severe Heartburn 37 weeks pregnant

The last week every time I wake up I have severe heartburn, I’ve been prescribed Pepcid to take at bedtime and it just isn’t helping, I’ve been sleeping sitting up and not laying down but I still wake up laying down as I move in the middle of the night. It’s getting so bad nothing is helping, It’s been lasting up to 3 hours before I finally get any little relief. Any advice helps! I have 2 weeks left until I’m induced unless baby comes sooner and just need some relief. 😮‍💨